New research finds those aged 65 and older can prevent often devastating fall injuries from occurring by simply supplementing with 700 to 1000 IU (international units) of vitamin D daily. These findings are based on the results of 8 studies specifically looking at preventing fall injuries by supplementing with vitamin D. As a group, those subjects taking less than 700 IU did not reduce their number of fall injuries while those taking 700 to 1000 IU did. According to researchers, the effectiveness of the daily 700 to 1000 IU dose of vitamin D occurs "… in a few months and is sustained over years, and the benefit is independent of age and present in those living at home and those living in nursing homes."